Sprinkler stake



FIG. 1 is a front elevational view of a sprinkler stake showing my new design;

FIG. 2 is an elevational view of one side thereof;

FIG. 3 is an elevational view of the opposite side thereof;

FIG. 4 is a plan view thereof;

FIG. 5 is a bottom view thereof; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for a sprinkler stake, substantially as shown and described. 